Buccal tube



FIG. 1 is a top and front perspective view of a buccal tube according to the invention;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a rear end view thereof; and,

FIG. 5 is a front end view thereof. 

CLAIM The ornamental design for a buccal tube, as shown and described. 